The higher-order approach aims to explain consciousness in terms of some relation between a conscious state and a representation of that state. Fans of this approach hope that it can pave the way to an account of consciousness that is both informative and amenable to naturalism. Yet higher-order theories face a wide range of interesting problems. In this conversation, Brown and Mandik discuss some of these problems and look for solutions to them.

The goal of the present paper is to defend against a certain line of attack the view that conscious experience of color is no more fine-grained that the repertoire of non- demonstrative concepts that a perceiver is able to bring to bear in perception. The line of attack in question is an alleged empirical argument - the Diachronic Indistinguishability Argument (DIA) - based on pairs of colors so similar that they can be discriminated when simultaneously presented but not when presented across a memory delay. My aim here is to show that this argument fails.